Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 8 de 8
Filtrar
Mais filtros










Base de dados
Intervalo de ano de publicação
1.
JMIR Form Res ; 6(7): e38683, 2022 Jul 07.
Artigo em Inglês | MEDLINE | ID: mdl-35797097

RESUMO

BACKGROUND: Working with eHealth requires health care organizations to make structural changes in the way they work. Organizational structure and process must be adjusted to provide high-quality care. This study is a follow-up study of a systematic literature review on optimally organizing hybrid health care (eHealth and face to face) using the Donabedian Structure-Process-Outcome (SPO) framework to translate the findings into a modus operandi for health care organizations. OBJECTIVE: This study aimed to develop an SPO-based quality assessment model for organizing hybrid health care using an accompanying self-assessment questionnaire. Health care organizations can use this model and a questionnaire to manage and improve their hybrid health care. METHODS: Concept mapping was used to enrich and validate evidence-based knowledge from a literature review using practice-based knowledge from experts. First, brainstorming was conducted. The participants listed all the factors that contributed to the effective organization of hybrid health care and the associated outcomes. Data from the brainstorming phase were combined with data from the literature study, and duplicates were removed. Next, the participants rated the factors on importance and measurability and grouped them into clusters. Finally, using multivariate statistical analysis (multidimensional scaling and hierarchical cluster analysis) and group interpretation, an SPO-based quality management model and an accompanying questionnaire were constructed. RESULTS: All participants (n=39) were familiar with eHealth and were health care professionals, managers, researchers, patients, or eHealth suppliers. The brainstorming and literature review resulted in a list of 314 factors. After removing the duplicates, 78 factors remained. Using multivariate statistical analyses and group interpretations, a quality management model and questionnaire incorporating 8 clusters and 33 factors were developed. The 8 clusters included the following: Vision, strategy, and organization; Quality information technology infrastructure and systems; Quality eHealth application; Providing support to health care professionals; Skills, knowledge, and attitude of health care professionals; Attentiveness to the patient; Patient outcomes; and Learning system. The SPO categories were positioned as overarching themes to emphasize the interrelations between the clusters. Finally, a proposal was made to use the self-assessment questionnaire in practice, allowing measurement of the quality of each factor. CONCLUSIONS: The quality of hybrid care is determined by organizational, technological, process, and personal factors. The 33 most important factors were clustered in a quality management model and self-assessment questionnaire called the Hybrid Health Care Quality Assessment. The model visualizes the interrelations between the factors. Using a questionnaire, each factor can be assessed to determine how effectively it is organized and developed over time. Health care organizations can use the Hybrid Health Care Quality Assessment to identify improvement opportunities for solid and sustainable hybrid health care.

2.
JMIR Mhealth Uhealth ; 9(6): e25021, 2021 06 11.
Artigo em Inglês | MEDLINE | ID: mdl-34033575

RESUMO

The COVID-19 pandemic has generated unprecedented and sustained health management challenges worldwide. Health care systems continue to struggle to support the needs of the majority of infected individuals that are either asymptomatic or have mild symptoms. In addition, long-term effects in the form of long-lasting COVID-19 symptoms or widespread mental health issues aggravated by the pandemic pose a burden on health care systems worldwide. This viewpoint article considers aspects of digital health care solutions and how they can play an ongoing role in safely addressing gaps in the health care support available from initially and repeatedly overwhelmed providers and systems. Digital solutions can be readily designed to address this need and can be flexible enough to adapt to the evolving management requirements of various stakeholders to reduce COVID-19 infection rates, acute hospitalizations, and mortality. Multiplatform solutions provide a hybrid model of care, which can include mobile and online platforms accompanied by direct clinician input and feedback. Desirable components to be included are discussed, including symptom tracking, patient education, well-being support, and bidirectional communication between patients and clinicians. Customizable and scalable digital health platforms not only can be readily adapted to further meet the needs of employers and public health stakeholders during the ongoing pandemic, but also hold relevance for flexibly meeting broader care management needs into the future.


Assuntos
COVID-19 , Pandemias , Atenção à Saúde , Humanos , Saúde Pública , SARS-CoV-2
3.
J Med Case Rep ; 14(1): 159, 2020 Sep 20.
Artigo em Inglês | MEDLINE | ID: mdl-32950051

RESUMO

BACKGROUND: J stents are commonly used to support the continuity of the urinary tract. Although intravascular, and more specific intracardiac, migrations have been described, they remain infrequent and unrecognized. CASE REPORT: We report the case of a 57-year-old Caucasian woman with an intracardial migration of a single-J stent after pelvic exenteration. The intracardiac presence of single-J stent was probably due to a perioperative misplacement of the stent in the left ovarian vein. Retrieval was done under fluoroscopic control without any adverse events. CONCLUSIONS: Intravascular migration of urological stents is uncommon but can cause serious morbidities and even mortality. Perioperative precautions must be taken to avoid this problem. In case of migration, early diagnosis and management are primordial and involve a multidisciplinary approach.


Assuntos
Ureter , Feminino , Átrios do Coração/diagnóstico por imagem , Átrios do Coração/cirurgia , Humanos , Pessoa de Meia-Idade , Stents , Ureter/diagnóstico por imagem , Ureter/cirurgia , Veia Cava Inferior
4.
Acta Orthop Belg ; 80(2): 190-5, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25090791

RESUMO

Prosthetic replacement of the proximal interphalangeal joints is an operative treatment for osteoarhtritis, to preserve the range of motion and the function of the hand. The purpose of this study is to detect the differences regarding pain and function between a silicone implant using a volar approach and a resurfacing implant, placed through a dorsal approach. Patients were reviewed clinically and scored. We found no significant differences in outcome between the two types of implants. However, the complication rate in the resurfacing group was significantly higher. Also, the economic cost of both implants was significantly different. The resurfacing implants were more expensive than the silicone implants.


Assuntos
Artroplastia de Substituição de Dedo/métodos , Materiais Biocompatíveis , Carbono , Articulações dos Dedos/cirurgia , Osteoartrite/cirurgia , Silicones , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
5.
Proc Natl Acad Sci U S A ; 108(14): 5578-83, 2011 Apr 05.
Artigo em Inglês | MEDLINE | ID: mdl-21415364

RESUMO

Proteolytic release from the cell surface is an essential activation event for many growth factors and cytokines. TNF-α converting enzyme (TACE) is a membrane-bound metalloprotease responsible for solubilizing many pathologically significant membrane substrates and is an attractive therapeutic target for the treatment of cancer and arthritis. Prior attempts to antagonize cell-surface TACE activity have focused on small-molecule inhibition of the metalloprotease active site. Given the highly conserved nature of metalloprotease active sites, this paradigm has failed to produce a truly specific TACE inhibitor and continues to obstruct the clinical investigation of TACE activity. We report the bespoke development of a specific TACE inhibitory human antibody using "two-step" phage display. This approach combines calculated selection conditions with antibody variable-domain exchange to direct individual antibody variable domains to desired epitopes. The resulting "cross-domain" human antibody is a previously undescribed selective TACE antagonist and provides a unique alternative to small-molecule metalloprotease inhibition.


Assuntos
Proteínas ADAM/antagonistas & inibidores , Anticorpos/farmacologia , Desenho de Fármacos , Região Variável de Imunoglobulina/metabolismo , Modelos Moleculares , Proteínas ADAM/metabolismo , Proteína ADAM17 , Animais , Ensaio de Imunoadsorção Enzimática , Humanos , Região Variável de Imunoglobulina/genética , Camundongos , Mutagênese , Biblioteca de Peptídeos , Estrutura Terciária de Proteína/genética , Ressonância de Plasmônio de Superfície
6.
Biochem J ; 428(3): 439-50, 2010 May 27.
Artigo em Inglês | MEDLINE | ID: mdl-20345372

RESUMO

ADAM17 (where ADAM is 'a disintegrin and metalloproteinase') can rapidly modulate cell-surface signalling events by the proteolytic release of soluble forms of proligands for cellular receptors. Many regulatory pathways affect the ADAM17 sheddase activity, but the mechanisms for the activation are still not clear. We have utilized a cell-based ADAM17 assay to show that thiol isomerases, specifically PDI (protein disulfide isomerase), could be responsible for maintaining ADAM17 in an inactive form. Down-regulation of thiol isomerases, by changes in the redox environment (for instance as elicited by phorbol ester modulation of mitochondrial reactive oxygen species) markedly enhanced ADAM17 activation. On the basis of ELISA binding studies with novel fragment antibodies against ADAM17 we propose that isomerization of the disulfide bonds in ADAM17, and the subsequent conformational changes, form the basis for the modulation of ADAM17 activity. The shuffling of disulfide bond patterns in ADAMs has been suggested by a number of recent adamalysin crystal structures, with distinct disulfide bond patterns altering the relative orientations of the domains. Such a mechanism is rapid and reversible, and the role of thiol isomerases should be investigated further as a potential factor in the redox regulation of ADAM17.


Assuntos
Proteínas ADAM/metabolismo , Regulação para Baixo , Isomerases de Dissulfetos de Proteínas/metabolismo , Proteínas ADAM/genética , Proteína ADAM17 , Linhagem Celular Tumoral , Células HeLa , Humanos , Isomerases de Dissulfetos de Proteínas/genética
7.
Urology ; 75(4): 786-92, 2010 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-19854473

RESUMO

OBJECTIVES: To uncover novel biomarkers that will help predict which patients are at risk and may guide future treatment decisions. A significant proportion of prostate cancer patients treated with radical prostatectomy will experience a recurrence of the disease. Given the substantial role of hypoxia in prostate cancer development and treatment, this investigation focuses on the Hypoxia Inducible Factor (HIF-1alpha) pathway. METHODS: A tissue microarray was constructed of prostate cancer tissue collected from 71 patients undergoing radical prostatectomy. The expression of proteins involved in the HIF-1alpha pathway was investigated by an immunohistochemical approach and correlated to clinical features including the time to biochemical recurrence. RESULTS: Expression of GLUT1 correlated significantly (P <.05) with a shorter time to biochemical recurrence after radical prostatectomy and was independent from the Gleason grade and stage of cancer. Furthermore, our studies revealed for the first time that accumulation of prolyl-4-hydroxylases 1 especially in the nucleus, is a significant indicator for a worse prognosis (P <.001). CONCLUSIONS: This study confirms the upregulation of proteins involved in the HIF-1alpha hypoxia pathway in prostate cancer cells, indicative of a hypoxic tumor state. Importantly, we report the identification of 2 novel markers, GLUT1 and prolyl-4-hydroxylases 1, with prognostic significance for patients undergoing radical prostatectomy.


Assuntos
Biomarcadores Tumorais/análise , Biomarcadores Tumorais/biossíntese , Fator 1 Induzível por Hipóxia/análise , Fator 1 Induzível por Hipóxia/biossíntese , Neoplasias da Próstata/química , Neoplasias da Próstata/metabolismo , Idoso , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Prostatectomia , Neoplasias da Próstata/cirurgia
8.
BMC Biotechnol ; 6: 34, 2006 Jul 12.
Artigo em Inglês | MEDLINE | ID: mdl-16836756

RESUMO

BACKGROUND: Lentiviral vectors are efficient vehicles for stable gene transfer in dividing and non-dividing cells. Several improvements in vector design to increase biosafety and transgene expression, have led to the approval of these vectors for use in clinical studies. Methods are required to analyze the quality of lentiviral vector production, the efficiency of gene transfer and the extent of therapeutic gene expression. RESULTS: We compared lentiviral vector titration methods that measure pg p24/ml, RNA equivalents/ml, transducing units (TU/ml) or mRNA equivalents. The amount of genomic RNA in vector particles proves to be reliable to assess the production quality of vectors encoding non-fluorescent proteins. However, the RNA and p24 titers of concentrated vectors are rather poor in predicting transduction efficiency, due to the high variability of vector production based on transient transfection. Moreover, we demonstrate that transgenic mRNA levels correlate well with TU and can be used for functional titration of non-fluorescent transgenes. CONCLUSION: The different titration methods have specific advantages and disadvantages. Depending on the experimental set-up one titration method should be preferred over the others.


Assuntos
DNA Viral/análise , Vetores Genéticos/genética , Lentivirus/genética , Lentivirus/isolamento & purificação , Reação em Cadeia da Polimerase/métodos , RNA Viral/análise , Transfecção/métodos , Mapeamento Cromossômico/métodos , Genoma Viral/genética
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...